• Photo of Carya aquatica (Carya aquaticas)

Plant Profile: Carya aquatica

Taxonomy: Carya aquatica

Names

Bitter Pecan, Bitter Water Hickory, Swamp Hickory, Water Hickory, Water Pignut

  • Photo of Carya aquatica (Carya aquaticas)

Phonetic Spelling:KAIR-yuh a-KWA-tee-kuh

Genus:Carya

Species:aquatica

Family:Juglandaceae

Water Hickory is a sizable native deciduous shade tree belonging to the walnut family. It plays a crucial role in the wetland forests of the southeastern United States, particularly due to the selective logging practices of the timber industry. This tree is vital for filtering water runoff during flood events. While it thrives in wet soils, it prefers well-drained, moist environments near rivers and other bodies of water. Water Hickory can propagate vigorously through both seeds and root sprouts.

In spring, the male and female flowers develop into nuts that, although bitter, are favored by waterfowl and small mammals. This tree grows slowly and typically does not bear nuts until it reaches at least 20 years of age. It can attain heights of over 100 feet, featuring a narrow and irregular crown. To propagate Water Hickory, seeds should undergo moist stratification.

If you have a pond, stream, or other damp areas with ample space, this tree would be an excellent addition, offering significant benefits for local wildlife.

Carya aquatica Feature Summary

Carya aquatica Image Gallery

Tags

#deciduous
#wildlife plant
#native tree
#moths
#wetlands
#wet sites
#nuts
#stream banks
#pond margins
#small mammals
#food source
#NC native
#nighttime garden
#swamps
#Braham Arboretum
#larval host plant
#deciduous tree
#wet soils tolerant
#moth larvae
#pollinator garden
#non-toxic for horses
#non-toxic for dogs
#bog gardens
#non-toxic for cats
#hickory horndevil moth

Similar Plants

Carya aquatica Feature Summary

Attributes
Used as firewood.
Central to southeastern U.S.A., NC
Found in VI south to FL west to TX and OK north to Missouri, IL, ID, and KY
Bitter nuts are eaten by ducks and other birds. Larval host plant to Luna moths, funeral dagger moths, and giant regal moths. This plant supports Hickory Horndevil (Citheronia regalis) larvae which have one brood and appear from May to mid-September. Adult Hickory Horndevil moths do not feed.
Nuts are bitter
Edible fruit
Wildlife Food Source
Fruit
The nut is in a fuzzy yellow to brown husk. The 1-1.5 inch nut is oval to egg-shaped and flattened.
Brown/Copper
Gold/Yellow
1-3 inches
Flowers
Male flowers occur in hanging slender yellow-green catkins 2-3 inches long. Female flowers are in short spikes or stalks and are very small and yellow-green.
Gold/Yellow
Green
Insignificant
Catkin
1-3 inches
Leaves
The dark green glossy compound leaves have 7-15 curved lance-shaped serrated leaflets with fine hairs along the midrib and major veins on the undersides.
Compound (Pinnately , Bipinnately, Palmately)
Lanceolate
> 6 inches
Bark
Smooth light grey to brown bark that splits into narrow loose shaggy red-tinged scales with age.
Light Gray
Light Brown
Red/Burgundy
Scaly
Smooth
Shaggy
Stem
Reddish-brown twigs with yellowish terminal buds.
Brown/Copper
Red/Burgundy
Gold/Yellow
Smooth (glabrous)
Straight
Only 1 terminal bud, larger than side buds
Whole Plant Traits
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Neutral (6.0-8.0)
Good Drainage
Moist
Occasional Flooding
Coastal
Piedmont
7a
7b
8b
8a
9a
9b
10a
10b
11a
11b
High Organic Matter
Loam (Silt)
Landscape
Pollinator Garden
Nighttime Garden
Native Garden
Water Garden
Shade Tree
Pollinators
Moths
Small Mammals

Carya aquatica Attributes

Carya aquatica: Uses (Ethnobotany)

Used as firewood.

Carya aquatica: Country Or Region Of Origin

Central to southeastern U.S.A., NC

Carya aquatica: Distribution

Found in VI south to FL west to TX and OK north to Missouri, IL, ID, and KY

Carya aquatica: Wildlife Value

Bitter nuts are eaten by ducks and other birds. Larval host plant to Luna moths, funeral dagger moths, and giant regal moths. This plant supports Hickory Horndevil (Citheronia regalis) larvae which have one brood and appear from May to mid-September. Adult Hickory Horndevil moths do not feed.

Carya aquatica: Edibility

Nuts are bitter

Carya aquatica: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Carya aquatica: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Carya aquatica: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Carya aquatica Fruit

Carya aquatica: Fruit Description

The nut is in a fuzzy yellow to brown husk. The 1-1.5 inch nut is oval to egg-shaped and flattened.

Carya aquatica: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Carya aquatica: Fruit Color

grass
Brown/Copper
grass
Gold/Yellow

Carya aquatica: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Carya aquatica: Display/Harvest Time

Fall
Spring
Summer
Winter

Carya aquatica: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Carya aquatica Flowers

Carya aquatica: Flower Description

Male flowers occur in hanging slender yellow-green catkins 2-3 inches long. Female flowers are in short spikes or stalks and are very small and yellow-green.

Carya aquatica: Flower Color

filter_vintage
Gold/Yellow
filter_vintage
Green

Carya aquatica: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Carya aquatica: Flower Bloom Time

Winter
Spring
Summer
Fall

Carya aquatica: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Carya aquatica Leaves

Carya aquatica: Leaf Description

The dark green glossy compound leaves have 7-15 curved lance-shaped serrated leaflets with fine hairs along the midrib and major veins on the undersides.

Carya aquatica: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Carya aquatica: Leaf Color

spa
Green

Carya aquatica: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Carya aquatica: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Carya aquatica: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Carya aquatica: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Carya aquatica: Hairs Present

No
Yes

Carya aquatica: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Carya aquatica: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Carya aquatica Bark

Carya aquatica: Bark Description

Smooth light grey to brown bark that splits into narrow loose shaggy red-tinged scales with age.

Carya aquatica: Bark Color

grass
Light Brown
grass
Light Gray
grass
Red/Burgundy

Carya aquatica: Surface/Attachment

Bumpy
Exfoliating
Fissured
Furrowed
Lenticels
Papery
Patchy
Peeling
Ridges
Scaly
Shaggy
Shiny
Shredding
Smooth
Spongy

Carya aquatica: Bark Plate Shape

Diamond
Irregular
Oval
Rectangle
Round
Square

Carya aquatica Stem

Carya aquatica: Stem Description

Reddish-brown twigs with yellowish terminal buds.

Carya aquatica: Stem Color

grass
Brown/Copper
grass
Gold/Yellow
grass
Red/Burgundy

Carya aquatica: Stem Is Aromatic

No
Yes

Carya aquatica: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Carya aquatica: Stem Form

Straight
Zig Zags

Carya aquatica: Stem Buds

Hairy
Hairy tips
Scaly
Smooth/Hairless

Carya aquatica: Stem Bud Terminal

Cluster of terminal buds
Only 1 terminal bud, larger than side buds
Only 1 terminal bud, smaller than side buds

Carya aquatica Whole Plant Traits

Carya aquatica: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Carya aquatica: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Carya aquatica: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Carya aquatica: Growth Rate

Slow
Medium
Rapid

Carya aquatica: Maintenance

Low
Medium
High

Carya aquatica Cultural Conditions

Carya aquatica: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Carya aquatica: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Carya aquatica: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Carya aquatica: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Carya aquatica: NC Region

Coastal
Mountains
Piedmont

Carya aquatica: USDA Plant Hardiness Zone

thermostat
10a
thermostat
10b
thermostat
11a
thermostat
11b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Carya aquatica: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Carya aquatica Landscape

Carya aquatica: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Carya aquatica: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Carya aquatica: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Carya aquatica: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Carya aquatica: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees